CVE-2026-13043WatchGuard Endpoint Security Missing Authentication in Kernel Memory Access Driver Allows Arbitrary Kernel Memory Access
Updated under an hour ago ()
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It affects WatchGuard Endpoint Security. Add what you run to find out whether that includes you.
EPSS puts the chance of exploitation in the next 30 days at 0.14%, higher than 3% of scored CVEs.
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A missing authentication vulnerability in the Kernel Memory Access Driver (PSKMAD) used by WatchGuard endpoint security products allows a local, authenticated attacker to bypass the driver's access-control handshake and issue arbitrary privileged commands to the driver, resulting in disclosure of kernel and process memory.
- CVSS
- 9.3 CRITICAL (v4.0, CNA)CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H
- Weakness (CWE)
- CWE-306, CWE-798
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- 0.14% (percentile 3)
- Assigned by
- WatchGuard
- NVD analysis
- Analyzed
- Record last updated
- Oct 1, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
WatchGuard Endpoint Security watchguard:endpoint_security (from the name) | before 8.00.26.0012 | CNA record |
watchguard endpoint_security watchguard:endpoint_security | before 8.00.26.0012 | NVD |
References
- https://psirt.watchguard.com/CVE-2026-13043vendor-advisory, patch
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.